Below is a list of Middle Island NY zip codes. For your research we have also included Middle Island Area Code, Time Zone, UTC and the local Suffolk County FIPS Code. Each Middle Island New York zip code has a center Longitude / Latitude point (the Middle Island center is -72.942199707031 / 40.883098602295). For your convenience we have also indicated if that zip code in Middle Island observes Daylight Savings time.